globally, provide global access to financial operation and scores of other cities worldwide. however, the space environment has changed in fundamental ways since the beginning of the space age 50 years ago. back then, your two powers, the united states in the soviet union, operating space systems. today, over 60 nations and governments in operate as well as numerous commercial and academic operators created an environment increasingly congested. for example, the u.s. department of defense tracks over 22,000 objects in space larger than 10 centimeters of which about 1100 practice satellites. there are also hundreds of thousand of additional objects too small to track, but still capable of damaging satellites that are bit in the international space station.